TABLE 2.
Species (n) | Antifungal agent | Fluconazole susceptibilitya
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S
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S-DD
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R
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All
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n | MIC50/MIC90 | %S | n | MIC50/MIC90 | %S | n | MIC50/MIC90 | %S | n | MIC50/MIC90 | %S | ||
C. albicans (4,195) | Fluconazole | 4,054 | 0.25/0.5 | 100 | 56 | 16/32 | 0 | 85 | >128/>128 | 0 | 4,195 | 0.25/0.5 | 97 |
Itraconazole | 0.03/012 | 96 | 0.5/1 | 11 | 1/>8 | 0 | 0.03/0.12 | 93 | |||||
Voriconazole | 0.007/0.015 | 99 | 0.25/1 | 93 | 1/>8 | 57 | 0.007/0.03 | 99 | |||||
Ravuconazole | 0.007/0.015 | 99 | 0.25/2 | 89 | 0.25/>8 | 73 | 0.007/0.03 | 99 | |||||
Amphotericin Bb | 0.5/1 | 96 | 1/2 | 85 | 1/2 | 79 | 0.5/1 | 95 | |||||
5FC | 0.5/1 | 97 | 0.25/1 | 96 | 0.25/1 | 98 | 0.25/1 | 97 | |||||
C. glabrata (949) | Fluconazole | 567 | 4/8 | 100 | 303 | 16/32 | 0 | 78 | >64/>64 | 0 | 949 | 8/32 | 60 |
Itraconazole | 0.5/1 | 6 | 1/2 | 0 | 8/>8 | 0 | 1/2 | 4 | |||||
Voriconazole | 0.12/0.25 | 100 | 0.5/1 | 97 | 2/8 | 13 | 0.25/1 | 92 | |||||
Ravuconazole | 0.12/0.5 | 99 | 0.5/2 | 87 | 4/8 | 11 | 0.25/2 | 89 | |||||
Amphotericin B | 2/4 | 46 | 2/4 | 46 | 1/4 | 57 | 2/4 | 47c | |||||
5FC | 0.12/0.12 | 99 | 0.12/0.12 | 98 | 0.12/0.12 | 97 | 0.12/0.12 | 99 | |||||
C. parapsilosis (814) | Fluconazole | 803 | 0.5/2 | 100 | 8 | 16/NDd | 0 | 2 | 64/ND | 0 | 814 | 0.5/2 | 99 |
Itraconazole | 0.12/0.25 | 55 | 0.5/ND | 0 | 0.25/ND | 0 | 0.12/0.25 | 4 | |||||
Voriconazole | 0.03/0.06 | 100 | 0.5/ND | 71 | 0.5/ND | 100 | 0.03/0.06 | 99 | |||||
Ravuconazole | 0.03/0.12 | 100 | 1/ND | 71 | 0.12/ND | 100 | 0.03/0.12 | 99 | |||||
Amphotericin B | 2/4 | 42 | 1/ND | 60 | 1/ND | 50 | 2/4 | 43c | |||||
5FC | 0.12/0.25 | 99 | 0.12/ND | 100 | 0.25/ND | 50 | 0.12/0.25 | 99 | |||||
C. tropicalis (597) | Fluconazole | 585 | 0.5/2 | 100 | 7 | 16/ND | 0 | 5 | >64/ND | 0 | 597 | 0.5/2 | 98 |
Itraconazole | 0.12/0.5 | 59 | 1/ND | 0 | >8/ND | 0 | 0.12/0.5 | 58 | |||||
Voriconazole | 0.03/0.12 | 100 | 1/ND | 50 | >8/ND | 0 | 0.06/0.12 | 99 | |||||
Ravuconazole | 0.03/0.12 | 99 | 2/ND | 33 | >8/ND | 0 | 0.03/0.12 | 98 | |||||
Amphotericin B | 1/2 | 57 | 1/ND | 50 | 1/ND | 50 | 1/2 | 57c | |||||
5FC | 0.5/1 | 93 | 0.25/ND | 100 | 0.5/ND | 100 | 0.25/1 | 93 | |||||
C. krusei (131) | Fluconazole | 6 | 8/ND | 100 | 65 | 32/32 | 0 | 60 | 64/64 | 0 | 131 | 32/64 | 5 |
Itraconazole | 0.25/ND | 17 | 0.5/1 | 2 | 1/1 | 2 | 0.5/1 | 2 | |||||
Voriconazole | 0.12/ND | 100 | 0.25/0.5 | 100 | 0.5/1 | 98 | 0.5/0.5 | 99 | |||||
Ravuconazole | 0.25/ND | 100 | 0.25/0.5 | 98 | 0.5/1 | 98 | 0.5/0.5 | 98 | |||||
Amphotericin B | 1/ND | 50 | 4/8 | 6 | 4/8 | 2 | 4/8 | 7c | |||||
5FC | 0.25/ND | 67 | 16/32 | 5 | 16/32 | 2 | 16/32 | 6 | |||||
C. dubliniensis (88) | Fluconazole | 78 | 0.12/0.25 | 100 | 6 | 32/ND | 0 | 4 | >64/ND | 0 | 88 | 0.25/16 | 89 |
Itraconazole | 0.06/0.12 | 91 | 0.12/ND | 50 | 0.5/ND | 0 | 0.06/0.25 | 84 | |||||
Voriconazole | 0.007/0.03 | 100 | 0.25/ND | 100 | 0.5/ND | 100 | 0.007/0.03 | 100 | |||||
Ravuconazole | 0.007/0.03 | 100 | 0.06/ND | 100 | 0.06/ND | 100 | 0.007/0.03 | 100 | |||||
Amphotericin B | 1/1 | 100 | 0.12/ND | 100 | 0.5/ND | 100 | 0.25/0.5 | 100 | |||||
5FC | 0.06/0.06 | 100 | 0.06/ND | 100 | 0.06/ND | 100 | 0.06/0.06 | 100 | |||||
C. guilliermondi (85) | Fluconazole | 68 | 4/8 | 100 | 14 | 16/32 | 0 | 2 | >64/ND | 0 | 85 | 4/16 | 81 |
Itraconazole | 0.5/1 | 7 | 1/1 | 0 | 4/ND | 0 | 1/1 | 7 | |||||
Voriconazole | 0.12/0.25 | 100 | 0.25/0.5 | 100 | 2/ND | 0 | 0.12/0.25 | 98 | |||||
Ravuconazole | 0.25/0.5 | 97 | 0.5/1 | 100 | 4/ND | 0 | 0.25/1 | 98 | |||||
Amphotericin B | 0.25/1 | 100 | 0.5/1 | 100 | 0.5/ND | 50 | 0.5/1 | 99 | |||||
5FC | 0.12/0.5 | 100 | 0.12/0.25 | 100 | 0.06/ND | 100 | 0.12/0.5 | 100 | |||||
C. lusitaniae (58) | Fluconazole | 57 | 0.5/2 | 100 | 1 | 16 | 0 | 58 | 0.5/2 | 98 | |||
Itraconazole | 0.12/0.25 | 51 | 2 | 0 | 0.12/0.25 | 50 | |||||||
Voriconazole | 0.007/0.015 | 100 | 0.5 | 100 | 0.007/0.015 | 100 | |||||||
Ravuconazole | 0.015/0.06 | 100 | 2 | 0 | 0.015/0.06 | 98 | |||||||
Amphotericin B | 0.5/1 | 98 | 0.5 | 100 | 0.5/1 | 98 | |||||||
5FC | 0.06/0.12 | 91 | 0.06 | 100 | 0.06/0.12 | 93 |
Fluconazole susceptibility categories are defined in the footnote to Table 1. n represents the number of isolates tested in each category. %S, percent susceptible: fluconazole MIC, ≤8 μg/ml; 5FC MIC, ≤4 μg/ml; itraconazole MIC, ≤0.12 μg/ml; all other MICs, ≤1 μg/ml.
Amphotericin B MICs were determined by Etest.
P < 0.001 compared to amphotericin B activity against C. albicans.
ND, not determined (fewer than 10 isolates).